Concrete is absolutely an essential component in construction material used in most of the buildings. It is mostly weak in tension and due to external loading the micro cracks were occur. The cracking allows chemicals and water to enter into the degraded concrete, reducing the performance of the structure and also it requires more expensive maintenance in the form of repairs. The micro cracks grow up to the reinforcement and hence the corrosion may occur due to exposure of water and oxygen, and possibly CO2 and chloride ions. In this paper, the study was made on application of self-healing property in concrete. The mineral precipitating bacteria and additives were investigated based on the strength and durability performances. Hence this paper outlines the types of bacteria, method of application, and medium of curing and pH concentration to overcome the strength and durability requirement.

Haoliang Huang and Guang Ye (2012),” the effects of capsules on self-healing efficiency in cementitious materials”, Second International Conference on Microstructural-related Durability of Cementitious Composites.